Deleting other off my iPhone?

So I'm trying to delete some of the 'other' from my iPhone.
I know there's a folder in the iPhone somewhere that you can delete to clear it up a little. Although, I just don't know what the folder is called and I also need an app for my mac that allows me to look though my iPhone.
So what I'm asking is…
What's a good mac app for exploring your iPhone as a USB? And…
What is the folder called that I need to delete?
Cheers, any help is much appreciated and will be rewarded with gratitude and friendly gestures.

You can't delete "other" that is the iOS. If you delete it (which you can't) your iPhone would be useless.

First of all, the "Other" are official files that came with the iPhone, and without them you can't use your iPhone.

Secondly, there are numerous softwares that can explore your iPhone on USB. I use iExplorer, which you can download here: http://www.macroplant.com/iexplorer/. With this software you can even mount your iPhone as a disk, so it will show up as any ordinary flash drive in Finder.

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